The BenQ Finger Mouse represents a breakthrough from the traditional way of holding a mouse, making it suitable for use with notebooks. Since the palm of your hand is behind, rather than on top of the mouse, the product is especially comfortable and convenient to use. And its novel approach allows for a smaller-sized mouse. The width of the stainless steel buttons is geared to usage frequency: the button on the left is used most frequently, and therefore has the largest surface area. The button on the right is rarely used and has a smaller area. The stainless steel and rubber materials form a strong contrast in sharpness and roundness. These two materials are a blend of coldness and warmth, thus demonstrating BenQ's design philosophy of "Balanced Compatibility".